Thermal diffusion of 57Co into rhodium matrix as a second step in preparing Mössbauer sources

Izabela Cieszykowska; Małgorzata Zółtowska; Piotr Zachariasz; Andrzej Piasecki; Tomasz Janiak; Mieczysław Mielcarski

doi:10.1016/j.apradiso.2011.03.040

Thermal diffusion of 57Co into rhodium matrix as a second step in preparing Mössbauer sources

Appl Radiat Isot. 2011 Sep;69(9):1193-7. doi: 10.1016/j.apradiso.2011.03.040. Epub 2011 Apr 8.

Authors

Izabela Cieszykowska¹, Małgorzata Zółtowska, Piotr Zachariasz, Andrzej Piasecki, Tomasz Janiak, Mieczysław Mielcarski

Affiliation

¹ Institute of Atomic Energy Polatom, Radioisotope Centre, Otwock-Świerk, Poland.

PMID: 21507667
DOI: 10.1016/j.apradiso.2011.03.040

Abstract

Thermal diffusion of (57)Co into rhodium matrix was studied. The diffusion degree was evaluated by Mössbauer spectroscopy with the use of α-Fe absorber. The influence of different annealing conditions was investigated. For a set of sources examined, smooth and rounded Lorentzian lines were observed. The main spectra parameters are fairly acceptable with respect to the typical obtainable values for α-Fe absorbers in Mössbauer spectroscopy. The results obtained confirm that the deposited (57)Co diffused almost completely into rhodium matrix without substantial loss of the activity deposited.

Publication types

Research Support, Non-U.S. Gov't